<template>
    <scroll id="tab-menu">
        <div class="menu-list">
            <div class="menu-list-item"
                 :class="{active: index===currentIndex}"
                 v-for="(item, index) in categories"
                 :key="index"
                 @click="itemClick(index)">
                {{item.title}}
            </div>
        </div>
    </scroll>
</template>

<script>
  import Scroll from '@/components/common/scroll/Scroll'

  export default {
    name: "TabMenu",
    components: {
      Scroll
    },
    props: {
      categories: Array
    },
    data() {
      return {
        currentIndex: 0
      }
    },
    methods: {
      itemClick(index) {
        this.currentIndex = index
        this.$emit('selectItem', index)
      }
    }
  }
</script>

<style scoped>
    #tab-menu {
        background-color: #f6f6f6;
        height: 100%;
        width: 100px;
        box-sizing: border-box;
    }

    .menu-list-item {
        height: 45px;
        line-height: 45px;
        text-align: center;
        font-size: 14px;
    }

    .menu-list-item.active {
        font-weight: 700;
        color: var(--color-high-text);
        background-color: #fff;
        border-left: 3px solid var(--color-high-text);
    }
</style>
